The gtkradiant_v150beta.msi file you have requested: Tools and Utilities / Editing / GtkRadiant (1.5.0 beta) - 4.35mb is not available. Perhaps try browsing all files for the game Doom III and upload any files you want to share or are missing. This is the only information we could locate:
SPoG- Changed brush .map export to not snap shift/rotate to integer.- Updated win32 install to use gtk+-2.4.9 and gtk-wimp-0.6.2.- Removed 'unknown model type: ""' and 'Texture load failed: ""' errors.- Changed pivot-point calculation to use A new beta release of this alternate level editor for DOOM 3. According to Radiant's website, "this version significantly improves support for Doom 3 in particular".Built-in editor or external one with added editing user-friendliness: you choose!